/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/PBDRigidClustering.h
const [TSet](API\Runtime\Core\Containers\TSet)< [Chaos::FPBDRigidClusteredParticleHandle](API\Runtime\Chaos\Chaos\FPBDRigidClusteredParticleHandle) * > & GetTopLevelClusterParents() const